Rooftop Unit Repair & Maintenance in New Bern, NC

A unit can run normally while losing capacity. Common causes include a low refrigerant charge from a leak, a dirty evaporator or condenser coil, a failing compressor component or restricted airflow through the ductwork. Because several causes produce the same symptom, we measure temperatures, pressures and airflow before recommending a repair. You receive those readings with our findings, so you can see why a particular fix is needed.

A planned visit is a structured inspection, not a quick look at the cabinet. Our technicians check electrical connections and controls, measure airflow and temperatures, inspect coils and filters, test safety devices and review the gas section where the unit provides heat. Components are cleaned where access allows, and the readings are documented. The visit ends with notes on what was done and what to watch before the next visit.

Burners, igniters, heat exchangers and venting are exposed to dust, moisture and cycling stress, and small problems can grow during long stretches of use. An inspection before the heating season checks ignition, combustion readings and safety controls while there is time to plan any repairs. We explain each finding in writing and recommend only the work the inspection supports.

Water usually collects when the condensate drain is clogged, the drain pan is cracked, the drain line lacks proper slope or the condensate trap is not working correctly. We clear the line, inspect the pan and confirm that condensate leaves the unit as designed. If water reaches the roof membrane or a ceiling below, we note the location so roofing or building repairs can be arranged separately.

Electrical faults and mechanical wear can produce similar symptoms, such as a compressor that will not start or a fan that stops. We separate them by testing voltage, amperage and control signals, then checking the mechanical parts under load. A weak capacitor, a failing contactor or an open safety switch points to electrical trouble, while a seized bearing or worn motor shows up in current draw and noise.

An economizer brings outside air into the building when temperature and humidity conditions allow, which can reduce the work the compressor does. When an actuator, linkage or damper stops responding, the unit may draw in too much or too little outside air, waste energy or disrupt the building’s ventilation. We test the damper’s movement, check its control signal and confirm that the reported position matches the controls.

Many repairs can be divided into stages. When a job involves several components or roof access, we can sequence the work so the items that affect comfort most are completed first and the rest follow in a window that suits your business. We explain which items affect comfort or safety, which can wait and how each stage will be completed. Before any stage begins, we agree on access, timing and tenant notice.

After a repair, you receive written findings that describe the work completed, the tests performed and the readings recorded. The notes list required repairs separately from recommendations, so managers can decide what to approve and when. We also keep service documentation on file, so future technicians can see which components have been replaced, adjusted or cleaned over the life of the unit.

Short cycling means the unit starts and stops more often than it should. It matters because repeated starts stress the compressor, contactors and motors, and the building may not reach its setpoint between cycles. The cause can be a control fault, a refrigerant problem, a dirty coil or a load the unit cannot follow. We record run times and temperatures to identify the cause before recommending a fix.

Facilities staff can keep a simple log of the unit’s behavior, including comfort complaints by zone, unusual sounds, water near the unit, changes in energy use and any warning lights on the controls. Note the date, time and conditions when each item appears. Sharing that record with our technicians before the next visit helps them focus on the right components and plan repairs with less disruption to your operations.